Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
  • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
  • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
  • C21D11/00—Process control or regulation for heat treatments
  • C21D11/005—Process control or regulation for heat treatments for cooling
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
  • G01N21/84—Systems specially adapted for particular applications
  • G01N21/86—Investigating moving sheets
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
  • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
  • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
  • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
  • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
  • G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/20—Metals
  • G01N33/204—Structure thereof, e.g. crystal structure
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
  • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
  • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
  • G01N2021/1706—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids in solids
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
  • G01N21/84—Systems specially adapted for particular applications
  • G01N21/88—Investigating the presence of flaws or contamination
  • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
  • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
  • G01N2021/8918—Metal
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N2201/00—Features of devices classified in G01N21/00
  • G01N2201/06—Illumination; Optics
  • G01N2201/061—Sources
  • G01N2201/06113—Coherent sources; lasers
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N2223/00—Investigating materials by wave or particle radiation
  • G01N2223/03—Investigating materials by wave or particle radiation by transmission
  • G01N2223/04—Investigating materials by wave or particle radiation by transmission and measuring absorption
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N2223/00—Investigating materials by wave or particle radiation
  • G01N2223/60—Specific applications or type of materials
  • G01N2223/624—Specific applications or type of materials steel, castings

Definitions

• the invention relates to a device for the contactless determination of at least one property of a metal product during metallurgical production of the metal product according to the preamble of claim 1, and a corresponding method according to the preamble of claim 26.
• measuring devices are used that guarantee a non-contact and non-destructive determination of the properties of the metal product.
• furnace devices or the like in which there is usually a high temperature, such measuring devices are usually arranged outside the housing of the furnace.
• complex cooling is also required for the components of the measuring device with appropriate temperature management so that they can be
• Components are not damaged by the high temperature of a furnace or the metal product.
• WO 2019/228692 A1 it is known to determine the austenite content of a metal product in real time by using electromagnetic radiation.
• two coils fed with AC voltage are used, between which the metal product is moved.
• One of the two coils emits electromagnetic radiation to the metal product, with the resulting wave pattern of the electromagnetic radiation that has passed through the metal product coming from the other coil Will be received.
• the distance between the two coils is set to a certain value, a change of this distance - once set - not being provided.
• the contactless and non-destructive determination of the properties of a metal product during its metallurgical production can also be carried out according to the principle of X-ray diffraction.
• WO 2017/202904 A1 This is known, for example, from WO 2017/202904 A1, in which the microstructure of a metal product is determined using an X-ray source and an X-ray detector, the X-ray source and the X-ray detector each being arranged in an actively cooled receiving chamber.
• the metal product to be checked is moved past between the X-ray source and the X-ray detector, a disadvantage being that a distance between the X-ray source and the X-ray detector relative to one another or the distance between these two measurement components and the metal product cannot be changed.
• the technology according to WO 2017/202904 A1 has the disadvantage that a distance between the X-ray source and the X-ray detector on the one hand and the metal product on the other hand is comparatively large and cannot be reduced to smaller values in terms of the system.
• JP 56062917 A the determination of material properties of a metal product according to the principle of X-ray diffraction is also known.
• a furnace device through which a metal product is passed for tempering or “quenching” is equipped with a measuring device by means of which X-rays are directed onto the metal product in order to specifically determine the austenite content of the metal product.
• This measuring device is fixedly arranged outside the housing of the furnace device and in this case in a constriction or constriction of the housing, so that a distance between the measuring device and the metal product is thereby reduced. Due to the geometry of said constriction of the housing of the furnace device, a distance between the measuring device and the metal product is fixed and cannot be changed.
• the invention is based on the object of creating a technology for non-contact and interference-free determination of the material properties of a metal product, with which the determination of at least one property of the metal product is optimized compared to the aforementioned prior art and possible with greater variability.
• the invention provides a device for the contactless determination of at least one property of a metal product during a metallurgical production of the metal product.
• This device comprises a housing through which the metal product can be moved, and at least one measuring device consisting of a transmitting unit and a receiving unit, with at least the transmitting unit generating an electromagnetic field and directing it onto the metal product and thereby creating an electromagnetic field in the material of the metal product physical interaction is induced. A remaining and / or resulting part of this physical interaction can be received by the receiving unit.
• a first opening and a second opening are formed in the wall of the housing.
• the said transmitting unit of the measuring device is assigned to the first opening, so that the electromagnetic field generated by the transmitting unit and / or its associated field lines impinge on the metal product on the side of the first opening. Furthermore, the receiving unit of the measuring device is assigned to the second opening, so that the remaining and / or resulting part of the physical interaction induced in the material of the metal product can be received or detected by the receiving unit on the side of the second opening.
• the device according to the invention comprises at least one in particular outside the housing provided adjustment device with which at least one component of the measuring device consisting of the transmitter unit and / or the receiver unit can be moved in the area of an opening of the housing or adjacent thereto and relative to the wall of the housing or relative to the metal product guided inside the housing, in order to thereby set or selectively change a predetermined distance from the metal product moving within the housing for this component, ie for the transmitting unit and / or the receiving unit.
• the invention also provides a method for the contactless determination of at least one property of a metal product during a metallurgical production of the metal product. In this method, the metal product is moved through a housing of a device, which device can be one according to one of Claims 1 to 25.
• At least one measuring device consisting of a transmitting unit and a receiving unit is used, an electromagnetic field being generated at least by the transmitting unit and directed onto the metal product, whereby a physical interaction is induced in the material of the metal product. The remaining and / or resulting part of this physical interaction is then received by the receiving unit.
• the method according to the invention is characterized in that at least one component of the measuring device consisting of the transmitting unit and / or the receiving unit is moved relative to the housing or the metal product moved therein and in the area of an opening of the housing or adjacent thereto, in order to thereby Component set a predetermined distance to the metal product or to change it in a targeted manner.
• a heat treatment of the metallic product is also required which is carried out in or with a furnace device and is intended, for example, to anneal or anneal the metal product.
• the housing through which the metal product is moved or guided can be part of a furnace for heat treatment.
• the present invention can also provide that the housing through which the metal product is moved or guided is part of a system for coating the metal product.
• the metal product the properties of which can be determined with the device according to the invention, is not part of this device as such. Rather, the housing of the device is suitable or designed so that the metal product is moved or guided through the housing in one direction of movement during its metallurgical production.
• the contactless determination of at least one property of the metallic product can also be carried out in particular when the metallic product is either comparatively high Is exposed to temperatures, for example in a furnace for heat treatment, and / or itself still has a comparatively high temperature.
• the invention is based on the essential knowledge that it is possible, at least one component of the measuring device, ie the transmitting unit or the receiving unit, or both of these components of the measuring device, ie the transmitting unit and the receiving unit, relative to the wall of the housing through which the Metal product is passed through to move or adjust.
• a movement can reduce the distance between the transmitter unit and Receiving unit relative to each other, and / or at the same time also a distance of the transmitting unit and / or the receiving unit to the metal product guided within the housing, can be specifically set or changed, for example also "online” or during an ongoing measurement of the material properties of the metal product and / or during its metallurgical production.
• this distance can be 100 mm, for example.
• this distance is as small as possible and can assume a value which is preferably less than 50 mm, more preferably less than 30 mm, more preferably less than 20 mm and more preferably about 10 mm .
• the predetermined distance is also adapted to the design or the dimensions of the transmitting unit and / or receiving unit.
• the distance between the receiving unit and the metal product is also dependent on the dimensions or the size of the receiving unit.
• the predetermined distance between the transmitting unit and / or receiving unit on the one hand and the metal product on the other hand is set in such a way that the respective specifications with regard to the product stability are also taken into account.
• the adjusting devices for moving the components of the measuring device can each have a high response speed and a high adjusting speed. Taking this into account, a predetermined distance between the transmitter unit and / or the receiver unit on the one hand and the metal product on the other hand can also be set to values of less than 10 mm. Details on this are explained separately below.
• the housing has a constriction in the area of the first opening and / or the second opening.
• the transmitting unit and / or the receiving unit By moving a component of the measuring device, ie the transmitting unit and / or the receiving unit, in the area or within these openings of the housing or adjacent thereto in the direction of the metal product, which then applies in the same way to the constriction, thanks the said constriction further reduce a resulting distance between on the one hand the transmitting unit and / or the receiving unit and on the other hand the metal product.
• this predetermined distance between the transmitter / receiver unit on the one hand and the metal product on the other hand is adapted to the type of electromagnetic field generated by the transmitter unit (e.g. X-rays or laser radiation) or to the magnetic field generated by the transmitter unit that acts on the metal product .
• this predetermined distance is selected to be as small as possible and can assume one of the aforementioned exemplary values.
• the movement of the transmitter unit and / or the receiver unit relative to the wall of the housing is preferably carried out in a translatory manner, for example using at least one adjusting device which is arranged in particular outside the housing through which the metal product is moved or guided and with the transmitter unit or The receiving unit is suitably in operative connection.
• a adjusting device can be designed telescopically, whereby a large adjustment path for movement with simple means for the transmitting unit or receiving unit connected therewith into the housing or out of the housing.
• Such a telescopic adjusting device also has the advantage that it only takes up a small amount of space.
• Another advantage with regard to the aforementioned mobility of the components of the measuring device is that it is possible to bring the transmitting unit and / or the receiving unit, preferably both of these units together, out of the housing of the device and then from the To spacing apart and / or removing the housing This then simplifies possible calibration work and / or maintenance work for these components of the measuring device.
• the principle of a contactless determination of at least one property of the metal product during its metallurgical production is based on the fact that the transmitting unit generates an electromagnetic field which is directed onto the metal product.
• the metal product is or will be arranged or moved with respect to the transmitter unit in such a way that the metal product is located in the area of influence of the field lines of the electromagnetic field generated by the transmitter unit.
• the aforementioned physical interaction is then produced or induced in the material of the metal product.
• the metal product which accordingly consists of a magnetizable metal such as steel in particular, by the electromagnetic field generated by the transmitter unit, the residual magnetic field strength and / or its gradient, which can be detected by the receiving unit, from affects the properties of the metal product;
• Ultrasonic field is generated, which can be measured or detected by the receiving unit, for example also on the basis of a laser radiation directed at the metal product.
• the radiation emanating from the electromagnetic field generated by the transmitter unit it is generally noted that this can be any form of electromagnetic radiation with which at least one property of the metal product can be determined, for example - as already mentioned above - X-ray radiation or laser radiation, or alternatively also microwaves, infrared or with wavelengths in the visible range.
• the waves generated by the transmitter unit preferably by x-rays, through the metal product, the remaining and / or resulting wave pattern then being received by the receiving unit on the opposite side of the metal product.
• the radiation generated by the transmitter unit preferably laser radiation
• the radiation generated by the transmitter unit is reflected on a surface of the metal product, with the remaining and / or resulting wave pattern, for example the Laser radiation is received by the receiving unit.
• the first and second openings of the housing are combined to form a common opening. This means that on the side of the housing on which the transmitting unit and the receiving unit are arranged, a common and correspondingly sufficiently large opening is formed for these components of the measuring device.
• the transmitting unit and receiving unit can be part of an IMPOC measuring head.
• the measured value of the residual magnetic field strength or the calculated gradient is assigned the mechanical strength of the section of the metal product under investigation via correlation relationships, this mechanical strength including in particular the tensile strength and the yield point of the material of the respective metal product.
• the resulting or remaining magnetic Properties of the metal product measured by the receiver unit (remanence or hysteresis curve).
• the residual field strength is measured in the unit [A / m 2 ].
• the IMPOC measuring principle is limited to magnetisable steel types, with associated measuring devices being available in stores.
• the transmitting unit is in the form of a magnetizing coil and the receiving unit is in the form of a magnetic field sensor. If such an IMPOC measuring head is arranged on one side of the metal product, it goes without saying that, as explained, the magnetizing coil and the magnetic field sensor are integrated in this measuring head, then - in general terms - the transmitting unit and the receiving unit on the same side of the metal product are arranged.
• the IMPOC measuring method usually uses two measuring heads, which are preferably constructed identically and are arranged on opposite sides of the metal product to be examined. In the context of the present invention, these two measuring heads can each be understood as a measuring device.
• the transmitting unit and / or the receiving unit can be moved by means of the associated adjustment device in such a way that the transmitting unit and / or the receiving unit are moved into the housing through the openings assigned to them or moved out of the housing.
• a distance between on the one hand the transmitting unit and / or the receiving unit and on the other hand the metal product is set to a predetermined one Value set or specifically changed. If the transmitting unit and / or the receiving unit of the measuring device are moved into the housing by means of the adjustment device connected to it, an advantageously very small distance between these component (s) of the measuring device and the metal product can be achieved.
• an adjustment device with which the transmitting unit and / or the receiving unit is each operatively connected and, as explained, a movement of these components of the measuring device relative to the housing of the device is implemented, is arranged outside the housing.
• a large adjustment path for such an adjustment device can be achieved in a robust manner by means of a telescopic configuration of this adjustment device.
• the housing is a furnace for the heat treatment of the metal product
• this housing usually contains a certain gas atmosphere with a high temperature, which must be sealed off from the environment of the housing.
• shields are provided which both ensure a seal of the interior of the housing from the outside environment and at the same time are permeable to the waves of electromagnetic radiation generated by the transmitter unit.
• screens can be windows.
• the shields or windows have the aforementioned required permeability with regard to the radiation waves of an electromagnetic field and / or with regard to the remaining and / or resulting part of the physical interaction explained above. This makes it possible to have both the transmitting unit and the receiving unit each on one To arrange outside of these shields or windows, which is opposite to the interior of the housing.
• the housing of the device can be part of a furnace for heat treatment
• gases for example hydrogen, nitrogen or combustion gases Poses a potential hazard.
• effective sealing of the first and second openings, which are formed in the wall of the housing, from the environment is also important in this regard.
• said shields with which the interior of the housing is sealed from the outside environment in the area of the openings in the housing, are designed in such a way that these shields also reduce thermal radiation.
• a comparatively high temperature inside the housing is suitably reduced by these shields or windows, with the result that on the opposite side of these shields or windows on which a component of the measuring device, i.e. a transmitting unit or receiving unit, is arranged, a reduced temperature prevails.
• shields are provided in the area of the first and second opening of the housing, in particular in the form of windows, with which, in addition to sealing off the atmosphere or gas composition within the housing from the environment, thermal radiation is also reduced.
• a shield is connected to an in particular elastically deformable sealing device, the Sealing device is attached to the edges of the first and second opening and thereby the interior of the housing is sealed from the environment.
• the sealing device just mentioned is connected to suitable adjustment means.
• the assigned transmitter / receiver unit can also be moved into the housing to match it or to the same extent in order to thereby to achieve the smallest possible distance to the metal product or to set or selectively change a predetermined distance to the metal product.
• the above-mentioned particularly flexible sealing device can be designed in the form of a deformable bellows.
• a shape can be provided for the above-mentioned, in particular flexible, sealing device so that it is round, rounded, oval, rectangular or square in cross section or has a combination of these shapes.
• the particularly flexible sealing device on its end face, which faces the interior of the housing, and / or lateral sections of the sealing device are each equipped with a protective layer and / or insulation against electromagnetic and / or thermal radiation.
• This has the advantage that such a sealing device is less sensitive and has a longer service life if, as explained, it is attached to the edges of the first or second opening of the housing and thus in the immediate vicinity of the interior of the housing, in the very high Temperatures can prevail, is arranged. Mutatis mutandis, this also applies to the electromagnetic radiation to which the sealing device can be exposed.
• the essential components of the measuring device namely the transmitter unit and the receiver unit, are sensitive components that must be protected in particular against the effects of excessively high temperatures.
• At least one cooling device can be provided for further protection against high temperatures.
• This cooling device serves to cool the shields or windows and / or the components of the measuring device (transmitting unit and / or receiving unit) and / or the sealing device provided in the area of the first or second opening of the housing.
• the cooling devices comprise cooling lines and / or cavities which are formed in a wall of the housing in particular adjacent to the first window and / or second window and through which a cooling fluid, in particular in the form of a liquid, flows.
• cooling lines and / or cavities of the cooling device are provided in the material of the sealing device, and / or that cooling lines in particular are provided in the form of line coils on at least one component of the measuring device (transmitting unit and / or receiving unit).
• the shields preferably in the form of windows, remain free of any form of dust, dirt or the like.
• at least one purge gas device is provided, through which a purge gas is applied to the shields or windows.
• the flushing gas can be discharged through suitable nozzles of the flushing gas device, which are located on the outside of the screens or windows and / or on their inside, i.e. are arranged in the interior of the housing.
• the surface of the shields or windows is preferably permanently “blown free” during the use of the device or when the method according to the present invention is carried out by the application of the flushing gas.
• the surface of these shields or windows remains essentially free of deposits in the form of dust or other soiling.
• the property of the metal product can be the following:
• measuring devices each with a transmitting unit and receiving unit
• openings of corresponding size or a plurality of openings can then also be formed in the wall of the housing, to which the individual transmitting units / receiving units of the respective measuring device are assigned.
• the openings that are formed in the wall of the housing and to which the respective components of the measuring device are assigned can be equipped with a high-performance insulating material.
• a high-performance insulating material which can be formed in the wall of the housing in the area of the first and / or second opening.
• such an insulating material has the advantage that on a sealing device, which can be attached to the edges of a respective opening, and / or on a component of the measuring device (transmitter unit and / or receiver unit), which as explained above in the area of such Opening or adjacent to it can be moved relative to the wall of the housing, a lower thermal radiation acts.
• the use of the present invention is particularly suitable for the heat treatment of a metal product, ie in connection with a furnace device through which the metal product is passed in the course of its heat treatment.
• a metal product ie in connection with a furnace device through which the metal product is passed in the course of its heat treatment.
• FIG. 1 -4 possible embodiments for a housing of an inventive
• Fig. 5 is a longitudinal sectional view of a housing of an inventive
• FIG. 6 shows an enlarged partial longitudinal sectional view of the representation of FIG. 2,
• Fig. 7 is a sectional view through a shield attached to a wall of the
• FIG. 8 shows a sectional view through a shield of FIG. 7,
• FIG. 9-12 are longitudinal sectional views through a device according to the invention according to further embodiments, with a housing according to FIG. 2, and FIG. 13 is a perspective view through the housing of a device according to the invention
• FIG. 20 shows a cross-sectional view through the housing of a device according to the invention according to a variant of FIG. 19,
• the device 10 comprises a housing 11 with an inner space 11 i.
• a metal product 1 for example in the form of a cold or hot strip, can be passed through the interior 11 i of the housing 11.
• the direction of movement in which the metal product 1 is guided through the housing 11 is denoted by “B” in the drawing and indicated by an arrow or a corresponding symbol.
• At least one first opening 13 and one second opening 14 are formed in a wall 12 of the housing 11 of the device 10. If these two openings 13, 14 are formed on the same side of the housing 11, these openings 13, 14 can optionally also be combined to form a common opening G, which is explained separately below (cf. FIGS. 23, 24 ).
• shields 20 are arranged in each case, which are designed, for example, in the form of windows. forms are. Without seeing any restriction here, these shields are always only referred to as “windows” 20 in the following.
• These windows 20 are part of a sealing concept according to the present invention in order to achieve sealing of the interior 11 i of the housing 11 with respect to the environment U.
• FIG. 1 shows a longitudinal sectional view through the housing 11 of a device according to the invention.
• a metal product 1 is moved through the housing 11 along a direction of movement B (from top to bottom in the plane of the drawing in FIG. 1).
• the area surrounding the housing 11 or its outside is symbolically denoted by “U”.
• the first window 13 and the second window 14 are formed in the wall 12 of the housing on opposite sides of the metal product 1.
• the windows 20 are here fastened directly to the edges of the respective opening 13, 14 or within these openings, the window 20 for the second opening 14 not being shown in FIG. 1 for the sake of simplicity and for reasons of better illustration.
• FIGS. 2-4 differ from the embodiment of FIG. 1 in that the housing 11 has a constriction 19 in the area of the first and second openings 13, 14. Otherwise, the embodiments according to FIGS. 2-4 differ only in the geometry of the constriction 19, so that reference is made to the explanation for FIG. 1 to avoid repetition.
• the device 10 comprises at least one measuring device 16 (cf. FIG. 5), which consists of a transmitting unit 17 and a receiving unit 18.
• the components of the measuring device 16, ie the transmitting unit 17 and the receiving unit 18, are each operatively connected to an adjusting device 15a.
• the respective adjusting device 15a When the respective adjusting device 15a is actuated, the Sending unit 17 and receiving unit 18 are moved relative to the wall 12 of the housing.
• FIG. 5 shows a longitudinal sectional view through the housing 11 of the device 10 according to the invention
• a metal product 1 can be moved through the housing 11 in a direction of movement B, namely in the plane of the drawing of FIG. 5 from top to bottom.
• the first opening 13 and the second opening 14 are formed in the wall 12 of the housing in such a way that they are located on opposite sides of the metal product 1.
• the transmitting unit 17 is assigned to the first opening 13, the receiving unit 18 being assigned to the second opening 14.
• the transmitting unit 17 can be moved through the first opening 13 through or adjacent thereto either into the interior 11 i of the housing 11 (in the plane of the drawing in FIG. 5 from right to left), or in the opposite direction, namely out of the Interior 11 i in the outward direction (in the plane of the drawing in FIG. 5 from left to right).
• the transmission unit 17 is connected to an adjusting device 15a which, in the illustration shown here in FIG. 5, is attached to an outer end face of the transmission unit 17 and is preferably designed telescopically. By actuating the adjusting device 15a, the transmitting unit 17 can thus either be moved into the interior 11 i of the housing 11 or out of the housing 11.
• the receiving unit 18 is also connected on its outer end face to an adjusting device 15a, in particular of a telescopic design.
• this adjusting device 15a When this adjusting device 15a is actuated, the receiving unit 18 can be moved through the second opening 14 or adjacent thereto either into the interior 11 i of the housing 11 or in the opposite direction, namely out of the housing 11.
• Sealing devices 23, which are each formed from an elastically deformable material, are fastened to the edges of the first opening 13 and the second opening 14.
• these sealing devices 23 can be formed from what is known as a bellows.
• such a sealing device 23 will only be referred to briefly as “bellows”, without this being seen as a restriction.
• Each bellows 23 is provided with a support structure 33 which runs along a longitudinal extension of the bellows 23 (ie, the plane of the drawing in FIG. 5 is horizontal).
• a support structure 33 stabilizes a bellows 23 with regard to its lateral changes in particular when the bellows 23 is moved, for example, far into the interior 11 i of the housing, as shown for example in the illustration of FIG. 5.
• FIGS. 5 and 6 show a partial longitudinal sectional view of the representation of FIG. 5 and illustrates further details thereof.
• FIG. 6 With regard to a symmetry of the arrangement of components at the first opening 13 and the second opening 14, only one side of the housing 11 is shown in FIG. 6 for the sake of simplicity.
• the illustration in FIG. 6 applies in the same way to the first opening 13 and to the second opening 14, which is also expressed by the fact that the component of the measuring device 16 shown in FIG. 6 is designated by “17” or “18” because this is either the transmitting unit 17 or the receiving unit 18
• An outer end face of the bellows 23 is connected to adjusting means 32 with which a preferably translational adjustment of the bellows 23 is possible, namely either into the interior 11 i of the housing 11 or in the opposite direction, i.e. out of the housing 11.
• moving or adjusting a respective folding bellows 23 by the associated adjusting means 32 independently of the adjusting device 15a or moving a component of the measuring device 16 (transmitter unit 17 and / or receiving unit 18) can take place.
• a respective window 20 is integrated on an end face of the individual bellows 23 facing the interior 11 i of the housing 11.
• a window 20 integrated therein is thus moved at the same time.
• the windows 20 according to the embodiment of FIG. 5 or FIG. 6 are therefore “moving windows”, the respective spacing of which from the metal product 1 depends on the respective positioning of the associated bellows 23.
• the transmitting unit 17 is assigned to the first opening 13, the receiving unit 18 being assigned to the second opening 14.
• the transmission unit 17 can, for example, through the first opening 13 by actuating the associated adjusting device 15a in the interior space 11 i of the housing 11 are moved into it. Synchronized to this movement of the transmitting unit 17, it goes without saying that the bellows 23 on the right-hand side of the metal product 1, which is fastened to the edges of the first opening 13 and thereby encloses the transmitting unit 17 along its outer circumference, has previously been actuated by the adjusting means 32 has been moved into the interior 11 i of the housing 11.
• the positions in which both the transmitting unit 17 and the receiving unit 18 are each shown with full lines in the illustration of FIG. 5 correspond, for example, to an operating position of these two components of the measuring device 16, in which they have been moved as close as possible to the metal product 1 .
• a predetermined distance is set for these positions between the transmitting unit 17 or receiving unit 18 on the one hand and the strip-shaped metal product 1 on the other hand, which thus assumes a value as small as possible, for example of about 10 mm.
• the positioning of the transmitting unit 17 or receiving unit 18 as shown in FIG. 5 makes it clear that these components of the measuring device 16 are not arranged directly within the interior 11 i of the housing 11, but that between them and the metal product 1 there is always the end face of a associated bellows 23 with a window 20 integrated therein.
• the metal product 1, which in the embodiment of FIG. 5 or FIG. 6 is passed through the housing 11 of the device 10 along the direction of movement B, can be a strip-shaped material, for example cold strip or hot strip.
• the components of the measuring device 16 in FIG. 5 are each moved in the transverse direction, i. E. in a direction orthogonal to a surface of the strip-shaped metal product 1. Such a direction of movement is symbolized in FIG. 5 by a double arrow labeled “T”.
• the two adjustment devices 15a which are each operatively connected to the transmitting unit 17 and the receiving unit 18, can be actuated independently of one another.
• these components 17, 18 of the measuring device 16 can also be moved in the transverse direction T independently of one another in order to be moved into the interior 11 i of the housing 11 or out of the housing 11.
• dashed lines indicate positions for the components of the measuring device 16, ie the transmitter unit 17 and the receiver unit 18, as well as for the associated bellows 23, in which these elements emerge from the first opening 13 or the second opening 14 have been moved out.
• the bellows 23 such a movement between the positions shown in FIG Solid lines and, on the other hand, shown by the dashed lines, enables these bellows 23 to be formed from an elastically deformable material.
• 6 shows the transmitting unit 17 or the receiving unit 18 in a position in which it has been moved out of the interior 11a in the transverse direction T by actuation of the respectively assigned adjusting device 15a.
• the bellows 23 has been moved outwards, so that the window integrated in the end face of the bellows 23 is still located adjacent to the inner end face of the transmitting unit 17 or receiving unit 18.
• cooling lines 30 can be integrated in the material of the bellows 23 on an end face thereof which faces the interior 11 i, and preferably adjacent to the window 20.
• a cooling fluid preferably in the form of a cooling liquid
• the end face of the bellows 23 is suitably cooled.
• This cooling at the end faces of a respective bellows 23 initially cools a window 20 integrated therein and can also have the consequence that the thermal load as a result of thermal radiation is applied to the component of the measuring device 16 (i.e. transmitter unit 17) located on the opposite side of the window or receiving unit 18) acts, is reduced.
• a further reduction in the thermal load for the transmitting unit 17 or receiving unit 18 can be achieved by providing a cooling device 24 through which a coolant, preferably a cooling liquid, is passed to cool the corresponding component of the measuring device 16.
• a cooling device 24 can be designed in the form of a line coil 25 which is attached to an outer circumferential surface of the transmitting unit 17 or receiving unit 18.
• FIG. 7 shows a sectional view (in longitudinal section or in cross section) through a window 20 which can be fastened to a wall 12 of the housing 11 or to a bellows 23.
• a cooling fluid preferably a cooling liquid
• this window consists of at least two surface elements which are spaced apart from one another and enclose a cavity 22 between them.
• a cooling fluid preferably a cooling gas
• the device 10 also comprises a purge gas device with nozzles from which a purge gas can be applied to the surface of a window 20. This is indicated symbolically in FIG. 7 by the two arrows, which are each designated with “F”.
• the nozzles of the flushing gas device can be arranged in the interior 11 i of the housing 11 and / or on the outside of the housing 11, preferably adjacent to the first opening 13 or the second opening 14.
• this functional mechanism with the assigned arrangement of transmitting unit 17 and receiving unit 18 in the area of the respective openings 13, 14 is possible for one of the housing shapes shown in FIGS. 1-4.
• FIGS. 2-4 it may be emphasized that an arrangement of the components of the measuring device 16 as shown in FIGS. 5 and 6 is possible, in particular in the area of a constriction 19 of the housing 11 at which the two openings 13, 14 are formed.
• the invention functions as follows: During its metallurgical lifting position, the metal product 1 is guided through the housing 11 of the device 10 along the direction of movement B. In an operating position of the device 10, the transmitting unit 17 and receiving unit 18 are synchronized with the associated bellows 23, each moved in the transverse direction T into the interior 11 i of the housing 11, as shown in FIG. 5 by solid lines has been shown and has already been explained above.
• the bellows 23 with the windows 20 integrated therein are moved as close as possible to the metal product 1, so that the transmitting unit 17 and the receiving unit 18 can be arranged at a predetermined and also as small a distance as possible from the metal product 1, for example about 10 mm
• the transmission unit 17 is designed in terms of the system in such a way that an electromagnetic field is generated by it, for example in the form of X-rays.
• the resulting electromagnetic radiation denoted by S in FIG. 5, first passes from the transmitter unit 17 through the window 20 of the associated bellows 23 and then through the metal product 1.
• S ' denotes the wave pattern which remains and / or results after the flux has passed through the metal product 1 on its other side and then after passing through the window 20 of the bellows 23 surrounding the receiving unit 18 is received by the receiving unit 18.
• the components 17, 18 of FIG. 5 can each be IMPOC measuring heads. This also applies in the same way to the embodiments according to FIGS. 9-15 and FIGS. 19 and 24, which are explained below.
• the windows 20, which are integrated into the respective bellows 23, with regard to the waves of electromagnetic radiation, preferably X-rays or laser radiation, or with regard to the field lines generated by the transmitter unit electromagnetic field are permeable.
• the receiving unit 18 is signal-connected to an evaluation unit (not shown).
• this evaluation unit By means of this evaluation unit, the remaining and / or resulting part of the physical interaction, for example in the form of a wave pattern of the transmitted X-ray radiation that has been received or detected by the receiving unit 18, is suitably evaluated and based on this at least one property or a material parameter meter for the metal product 1 intended.
• the device 10 comprises a protective sliding device 28 (cf. FIGS. 5, 6) which is arranged within the interior 11 i of the housing 11.
• This protective sliding device 28 fulfills a safety function and ensures sufficient spacing of the metal product 1 when it is passed through the housing 11 in the direction of movement B, from the openings 13, 14 and / or from the components of the measuring device 16 and / or of the bellows 23.
• the protective sliding device 28 prevents the metal product 1 from coming into contact with the end faces of the respective bellows 23 and the windows integrated therein as a result of a possible lateral movement in the direction of one of the side walls of the housing 11 20 can get.
• possible damage to the bellows 23 and the components of the measuring device 16 arranged behind them by the metal product 1 can be prevented thanks to the protective sliding device 28.
• FIG. 13 shows that the protective sliding device has guide rollers that are rotatably mounted and can be in contact with the metal product 1, during which the metal product 1 is guided through the housing 11 in the direction of movement B.
• the protective sliding device has guide rollers that are rotatably mounted and can be in contact with the metal product 1, during which the metal product 1 is guided through the housing 11 in the direction of movement B.
• a defined guidance for the metal product 1 within the interior 11 i of the housing 1 is achieved, with possible deflections of the metal product 1 to the side being less likely or not possible at all.
• this can prevent the metal product 1 from inadvertently coming into contact with the end faces of the bellows 23 and damaging them or the components of the measuring device 16 arranged behind them.
• the transmitting unit 17 and the receiving unit 18 can be arranged in the openings 13, 14, which are formed in opposite sides of the housing 11, according to the functional mechanism according to FIG.
• two guide rollers 28z can be moved in the direction of an opposite wall of the housing 11, preferably in a translatory manner, in order to thereby come into contact with the metal product 1 and possibly exert a pressure force on the metal product 1.
• these movable guide rollers 28z are arranged on the right side of the metal product 1.
• These movable guide rollers 28z have a smaller distance from one another than two further guide rollers 28 which are arranged on the opposite side of the metal product (on the left-hand side in FIG. 14). If the movable guide rollers 28z are now moved from right to left in relation to the plane of the drawing in FIG.
• the result is that the band-shaped metal product 1 is arranged between the movable guide rollers 28z on the one hand and those on the other side of the metal product 1 two guide rollers 28 is guided in a defined manner within the interior 11 i of the housing 11, so that there is no risk of the metal product 1 being deflected to the side with undesired contact with the bellows 23. Furthermore, the targeted positioning of the movable guide rollers 28z against the band-shaped metal product 1 results in a compressive force being exerted on the metal product 1, which then causes a tensile force in a longitudinal extension of the metal product 1.
• an end face of a bellows 23, which is assigned to the transmitting unit 17 or the receiving unit 18, and thus also the associated components 17, 18 of the measuring device 16, can then be arranged even closer to the metal product 1, for example at a distance of less than 10 mm , since as a result of the targeted guidance of the metal product 1 there is no risk of lateral “slipping” and thus damage to the bellows 23 and the components 17, 18 of the measuring device 16 arranged behind them.
• Component 17, 18 of the measuring device 16 is shown. It can also be seen in FIG. 14 that a bellows 23 is moved into the interior 11 i of the housing 11 in such a way that its end face facing the interior 11 i with the window integrated therein is directly adjacent to the metal product 1 is positioned. It can also be seen that a distance between the two movable guide rollers 28z is selected to be so large that the bellows 23 has space between these guide rollers 28z when it is positioned in direct proximity to the metal product 1. 15 shows an embodiment of the device 10 in a simplified side view, in which the components of the measuring device 16, ie the transmitting unit 17 and the receiving unit 18, can be arranged adjacent to the two openings 13, 14 in the same way as in the functional mechanism of Fig. 5.
• the device 10 also comprises a holding device H, to which the transmitting unit 17 and the receiving unit 18 are attached together.
• the holding device H thus forms a frame device which, for example and according to the illustration in FIG. 15, is C-shaped.
• the transmitting unit 17 and the receiving unit 18 can be displaceably adjusted in a longitudinal direction L parallel to a surface of the strip-shaped metal product 1. Specifically, this means that the transmitting unit 17 and the receiving unit 18, if they have previously been moved sufficiently far out of the interior 11 i of the housing 11 in the transverse direction (cf. FIG. 6), then subsequently by means of the holding device H in the longitudinal direction L away from the housing 11, ie moved far away and thus “driven out of line”.
• the present invention can provide maintenance and / or repair work for the components 17, 18 of the device 10 after the transmitting unit 17 and the receiving unit 18 have been removed from the housing 11 by a movement in the longitudinal direction by means of the holding device H, as explained.
• FIG. 9 to 12 show further embodiments for the device 10 according to the invention, namely in each case in a longitudinal sectional view through the housing 11.
• a housing type according to FIG. 2 is used for this, in which the Housing 11 has a constriction 19 in the area of openings 13, 14.
• the transmitting unit 17 and the receiving unit 18 can be movably attached according to the same functional mechanism as in FIG. 5 in the area of the openings 13, 14 formed in the wall 12 of the housing 11, with the interior being sealed 11 i of the housing using the bellows 23 is achieved
• FIG. 9 also shows that the two openings 13, 14 can each be closed by a closure device 26, here only symbolized by a dashed line, if the components 17, 18 of the measuring device 16 are sufficiently wide are moved out of the interior 11 of the housing. This can take place in the same way as in FIG. 6, where such a closure device 26 is shown and has already been explained.
• FIG. 10 shows that no bellows are used to seal the interior 11 i; This is not because the windows 20 are attached directly to the housing 11 adjacent to the first opening 13 and to the second opening 14 and, in this respect, a seal of the interior 11 i is ensured. Furthermore, the illustration of FIG. 10 shows that cooling channels 25 are formed in the housing 11 i adjacent to the two openings 13, 14 in order to cool the housing 11 directly adjacent to the windows 20 attached to it.
• the transmitting unit 17 and the receiving unit 18 are each shown by dashed lines in a position in which they are completely removed both from the interior 11 i of the housing 12 and from the openings assigned to them 13, 14 moved out - Starting from this position, these components of the measuring device 16 can then be moved in the manner explained in the longitudinal direction L by means of the holding device H (cf. FIG. 15), which is not shown in FIGS. 9-12 for the sake of simplicity Housing 11 are moved away.
• the windows 20, in the same way as in the embodiment of FIG. 10, are attached directly to the housing 11 and adjacent to the openings 13, 14. In this respect, there is no need to use a bellows in these embodiments in order to seal the interior 11 i from the environment U.
• the sealing concept for the interior 11 i of the housing 11 in connection with a mobility of the components 17, 18 of the measuring device 16 relative to the housing 11 is also implemented using bellows 23 with integrated windows 20, these bellows 23 - in the same Way as already explained for FIG. 5 - are attached to the edges of the openings 13, 14.
• All of the bellows 23 of the embodiments of Figures 17-25 are connected to adjusting means with which a movement of these bellows 23 into the interior 1 1 i of the housing 1 1 and also in the opposite direction, ie out of the housing 1 1 is possible.
• these adjusting means are not shown in FIGS. 17-25.
• these bellows 23 can also move independently of one another and in particular in the event that the associated components 17, 18 of the measuring device 16 are each located outside the housing 11 of the device 10.
• the device 10 each comprises a housing 11 in which the two openings 13, 14 are formed next to one another in a wall 12 which is arranged in alignment with the surface of the strip-shaped metal product 1.
• the perspective views according to FIGS. 17 and 18 show both the band-shaped design of the metal product 1 and the direction of movement B in which the band-shaped metal product 1 is moved through the housing 11 of these embodiments.
• FIG. 19 shows a cross section of the housing 11 from FIG. 17.
• the first opening 13 and the second opening 14 are formed next to one another in the same wall 12 of the housing 11, the transmitting unit 17 of the first opening 13 and the receiving unit 18 are assigned to the second opening.
• the transmitting unit 17 and the receiving unit 18 are each operatively connected to adjusting devices, which are designated here by “15b” and, as already explained, can be actuated independently of one another.
• the adjustment device for the receiving unit 18 is not shown in FIG. 19.
• the transmitting unit 17 and / or the receiving unit 18 are moved in the longitudinal direction L when an adjustment device 15b connected to it is actuated, ie parallel to a surface of the band-shaped metal product 1, and can thereby either be moved into the interior 11 i of the housing 11 are moved in or out of the housing 11.
• the transmitting unit 17 and the receiving unit 18 are shown by way of example and in comparison to one another in different operating positions:
• the transmitting unit 17 is located adjacent to the first opening 13 and outside the interior 11 i of the housing 11, whereas the receiving unit 18 in the longitudinal direction L into the interior 11 i of the housing 11 is moved into it.
• windows 20 are integrated in each case, in the same way as already explained in FIG. 5.
• closure devices 26 Adjacent to the two openings 13, 14 - in the same way as already explained for FIG. 6 - closure devices 26 are attached to the housing 11. If the components 17, 18 of the measuring device 16 are arranged outside the interior 11 i of the housing 11, an opening 13, 14 can be closed by an associated closure device 26. In FIG. 19, this is the case for the first opening 13.
• the transmission unit 17 can be activated by actuating the Adjusting device 15b can be moved in the longitudinal direction L into the interior 11i of the housing 11, for example into the position in which the receiving unit 18 is also shown.
• the bellows 23, which surrounds the transmission unit 17 is either moved synchronously with the transmission unit 17 or is previously moved into the
• Housing 11 has been moved into it.
• Bellows 23 integrated windows 20 are each facing the band-shaped metal product 1. Accordingly, at least one property of the metal product 1 can then be determined according to the transmission or transmission principle, in the same way as already explained for FIG. 5.
• the adjusting devices 15b which are assigned to the transmitting unit 17 and the receiving unit 18, are - in the same way as the adjusting device 15a in the embodiment of FIG. 15 - on one
• Holding device L attached. This is shown in Fig. 19 for simplicity only for the Adjusting device 15a connected to the transmitting unit 17 is shown. If the transmitting unit 17 and receiving unit 18 are each located outside of the housing 11 and are spaced far enough from the openings 13, 14 of the housing 11, actuation of the holding device H can cause the transmitting unit 17 and receiving unit 18, for example, in the transverse direction T be removed from the housing 11 in order to carry out, for example, a calibration measurement and / or maintenance or repair work elsewhere.
• the embodiment of FIG. 20 comprises a housing 11 similar to that of FIG. 17, with the difference that here the first opening 13 and the second opening 14 are not formed in the same wall 12, but in opposing walls 12 of the housing .
• the functional mechanism corresponds to the movement of the components 17, 18 of the measuring device 16 in longitudinal Direction L into the interior 11 i of the housing 11 or in the opposite direction, ie out of the housing 11, as well as a closure of the interior 11 i by means of the closure devices 26 is possible, that of FIG. 19, so that to avoid Repetitions may be made to the explanations for FIG. 19.
• the adjusting device 15b and the holding device L which can be configured in the same way as in the embodiment of FIG. 15, are not shown.
• the embodiment according to FIG. 20 is characterized in that the transmitting unit 17 and the receiving unit 18, when they are moved into the interior 11 i of the housing 11 as shown in FIG. 20, then on the same side of the strip-shaped metal product 1 are arranged.
• at least one property of the metal product 1 is determined according to the reflection principle, in that the waves of an electromagnetic radiation S generated by the transmitter unit 17 are directed through the window 20 of the bellows 23 onto the metal product 1, the remaining and / or resulting wave pattern S 'is then received by the receiving unit 18.
• the direction of movement B for the strip-shaped metal product 1 corresponds to that of FIG. 19 and extends into the plane of the drawing.
• the embodiment of FIG. 21 comprises a housing 11 in which the first and second openings 13, 14 are formed in the same wall 12. This housing 11 is designed in such a way that a strip-shaped metal product 1 is passed vertically through it, as is symbolized for the side view of FIG. 21 by the arrow B for the direction of movement of the metal product 1.
• FIG. 22 shows the housing 11 from FIG. 21 in a longitudinal sectional view.
• the principle is also followed that the transmitting unit 17 is assigned to the first opening 13 and the receiving unit 18 is assigned to the second opening 14.
• the functional mechanism for moving these components 17, 18 of the measuring device 16 in the area of the openings 13, 14 and also for moving the bellows 23 corresponds in the same way to the embodiment of FIG. 19, so that reference is made to the explanations for FIG. 19 to avoid repetition becomes.
• the illustration in FIG. 22 shows the transmitting unit 17 and the receiving unit 18 each in a position in which they are moved into the interior 11 i of the housing 11.
• the transmitting unit 17 and the receiving unit 18 move into this position in that they are each moved in the transverse direction T by actuating the respectively assigned (and not shown here) adjusting devices.
• 22 illustrates that the transmitting unit 17 and the receiving unit 18 are each arranged in these positions on the same side of the strip-shaped metal product 1.
• FIG. 23 corresponds to a variant of the embodiment according to FIG. 21 or FIG. 22, with the modification that here the two openings 13, 14 are not formed separately from one another and one above the other in the same wall 12 of the housing 11, but instead are combined in a common opening G. This can be seen in the illustration of FIG. 23, which shows a cross-sectional view through the housing 11.
• the transmitting unit 17 and the receiving unit 18 are each shown in one position when they are moved in the transverse direction T into the interior 11 i of the housing. It can be seen here that the components 17, 18 of the measuring device 16, in the same 20, are arranged on the same side of the strip-shaped metal product 1, so that during operation of the measuring device 16 at least one property of the strip-shaped metal product is determined according to the reflection principle.
• Receiving unit 18 are operatively connected.
• a common bellows 23 is preferably provided for transmitter unit 17 and receiver unit 18, this bellows 23 being fastened to the edges of opening G and being moved relative to opening G of housing 11 and in the transverse direction by means of an associated adjustment unit T lets move.
• a window (not shown) is integrated on one end face of this common bellows 23, which faces the band-shaped metal product 1, which, as explained, is permeable to the waves of electromagnetic radiation in order to To enable measurement of the Meta II product 1 according to the reflection principle.
• the embodiment according to FIG. 24 represents a variant of the embodiment from FIG. 19, with the modification that here the first and second openings are formed in the wall 12 of the housing 11 in such a way that they are combined to form a common opening G.
• FIG. 24 shows a cross section through the housing 11 and the components 17, 18 in a respective operating position when they are arranged on opposite sides of the strip-shaped metal product 1. Furthermore, FIG. 24 shows that two windows 20 are integrated in the lateral areas of the bellows 23, which, in the same way as in FIG. 19, are assigned to the transmitting unit 17 and the receiving unit. This enables at least one property of the strip-shaped metal product 1 to be determined according to the transmission principle.
• FIGS. 23 and 24 are equipped in the same way as, for example, the embodiment of FIG. 19 with closure devices 26 which are each attached to the housing 11 in the area of the common opening G. If the transmitting unit 17 and the receiving unit 18 are located outside the housing 11, the interior 11 i of the housing can be closed by means of this closure device 26, as has already been explained above, for example, with regard to FIG. 19 or FIG. 6.
• FIG. 25 shows a further embodiment of the device 10 according to the invention, namely here in a longitudinal sectional view through the housing 11 of this device 10.
• the transmitting unit 17 and the receiving unit 18 of the measuring device 16 form an integrated measuring head are summarized.
• the aforementioned integration of transmitting unit 17 and receiving unit 18 in a common measuring head is used The result is that these components of the measuring device 16 are arranged on the same side of the strip-shaped material 1.
• at least one property of the strip-shaped metal product is determined here according to the reflection principle.
• the embodiment according to FIG. 25 is particularly suitable for the use of laser radiation that is generated by the transmitting unit 17 and directed onto the surface of the metal product 1, the reflected part of this laser radiation then being received by the receiving unit 18.
• the same also applies to the embodiments according to FIGS. 22 and 23.
• the measuring head shown here can alternatively also be an IMPOC measuring head. Details of the IMPOC measuring method have already been explained above.
• a holding device (not shown) can also be provided, to which the transmitting unit 17 and the receiving unit 18 are attached, analogously to the embodiment of FIG 19.
• a holding device it is possible to remove or move the transmitting unit 17 and the receiving unit 18 away from the housing 11 after these components 17, 18 of the measuring device 16 have been moved out of the interior 11 i and are accordingly located outside the housing 11.
• the adjusting devices 15a, 15b used here, with which movement for the components 17, 18 of the measuring device 16 is implemented, can each be designed telescopically, as has been explained, for example, for FIG.
• the transmission unit 17 can be designed in such a way that it generates a laser radiation S which is directed onto the metal product 1 and generates ultrasound in its material. Such a local ultrasonic field in the material of the metal product 1 can also be detected by means of laser radiation.
• the receiving unit 18 is also designed to generate laser radiation which is directed onto the metal product for the purpose of measuring the ultrasound generated in the material of the metal product 1.
• the wall 12 of the housing 11 can be double-walled at least in some areas or everywhere. This improves isolation of the
• a signaling device is provided with which damage to the strip-shaped metal product 1, for example a “strip break”, can be detected during its transport through the housing 11.
• the transmitting unit 17 and the receiving unit 18, possibly in connection with the respectively assigned bellows 23, are immediately moved out of the interior 11 i of the housing 11 in order to prevent damage to these components 17, 18 of the measuring device 16.
• the interior 11 i with its openings 13, 14, G can then be closed by means of the closure device 26.
• a signaling device is provided with which a possible "slagging" of the metal product 1, i.e. an impermissible movement to the side can be detected during its transport through the housing 11.
• the signaling device can trigger an actuation of the movable guide rollers 28z according to FIG. 14, which are then set against the band-shaped metal product 1 as explained in FIG. 14, as explained, in order to at least in the area of the windows 13, 14 of the housing 11 and of the components 17, 18 of the measuring device 16, which are movably guided adjacent thereto, to achieve precisely defined guidance of the metal product 1 past the transmitting unit 17 and the receiving unit 18.
• Measuring device can also be achieved in that a (not shown) sample body is attached between two different batches of a metal product 1 and is then transported through the housing 11 in the same way as the production batches of a metal product.
• a specimen can be used with the ends of a previous metal product and one later
• the adjusting devices 15a, 15b are each designed as high-speed adjusting cylinders with which the transmitting unit 17 and / or the receiving unit can be moved with a high response or adjusting speed.
• the adjusting means for the bellows 23 can also be designed in such a way that they can be used to move the bellows 23 connected to them in a very short time or with a high response speed.
• Said detection device is signal-connected to the adjusting devices or flea speed adjusting cylinders and also to the adjusting means for the bellows.
• the transmitting unit 17 and / or receiving unit 18 can be moved away from the metal product 1 very quickly if this should experience an unscheduled movement to the side, ie in the direction of the components 17, 18 of the measuring device 16. As a result, damage to these components 17, 18 can be prevented.
• the respective bellows 23 are then expediently moved away from the metal product synchronously or simultaneously with the components 17, 18 of the measuring device 16 assigned to them. For such an embodiment of the invention, it is possible to set the distance between on the one hand the transmitting unit 17 and / or the receiving unit 18 and on the other hand the metal product to values ⁇ 10 mm.
• shielding e.g. in the form of a window
• deformable sealing device e.g. in the form of a bellows

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• 2020
  • 2020-06-15 BR BR112021025284A patent/BR112021025284A2/pt unknown
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  • 2020-06-15 KR KR1020217042594A patent/KR20220034057A/ko not_active Application Discontinuation
  • 2020-06-15 EP EP20753272.2A patent/EP3983799A2/de active Pending

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